
#23 SP · Diamondbacks
Height
6'2"
Weight
189 lbs
Age
30
College
North Carolina
Draft
2016, Rd 3, #106
Experience
7 yrs
Bats/Throws
R/R
Grade ZAC Gallen
Your grade joins the crowd-sourced Fan Verdict.
On the field, ZAC Gallen grades out as a strong SP for Diamondbacks (B- Performance). That places him 117th of 252 graded starting pitchers. The contract is harder to defend: the Contract Value Index calls it fairly priced (C), with the cost outrunning the output. The public read is negative (D+ Sentiment), drawn from current news and social signal rather than the box score.
| Year | Team | GP | ERA | W-L | K | WHIP | IP | SV |
|---|---|---|---|---|---|---|---|---|
| Career | ![]() | 187 | 3.645212 | 69-56 | 1100 | 1.1726846 | 0.0 | 0 |
| 2026 | ![]() | 13 | 5.32 | 3-5 | 43 | 1.52 | 64.1 | 0 |
| 2025 |
Length
1 year
Total Value
$22.0M
Guaranteed
$13.2M
AAV
$22.0M/yr
Zac Gallen's on-field production earns a B- performance grade against SP peers across MLB. Through 13 games in the 2026 season, Gallen has logged 3 wins and 43 strikeouts, a workload that reflects both his veteran durability and the incremental production expected from an established starter in mid-season form. His strikeout rate stands as the clearest strength in his stat line, demonstrating he still possesses the stuff to miss bats in meaningful volume. The concerning element, however, is the win-loss record relative to games started — three wins across 13 appearances suggests inconsistency in run support, execution, or both, and that fragility aligns directly with the media narrative around mechanical breakdowns in high-leverage moments like his Opening Day outing. Gallen carries legitimate pedigree as a seven-year veteran with an All-MLB First Team selection in 2023, but that credential feels increasingly distant as the Diamondbacks sit at .500 and the front office cycles through active roster moves across multiple positions, a pattern that typically signals organizational uncertainty rather than confidence in core contributors. With the regular season stretching 107 days forward and Arizona chasing playoff positioning from the tenth seed, Gallen finds himself in genuine prove-it territory — his B- grade suggests serviceable contributions, but the D+ sentiment grade reflects legitimate skepticism from beat writers and fans about whether he can deliver when the stakes are highest.
Other same-position deals the Contract Value Index also places in the C band — a quick read on where ZAC's contract sits relative to comparable money.
ZAC Gallen ranks 117th of 252 graded starting pitchers by performance. That slots ZAC between Lucas Giolito (B-) just ahead and Emmet Sheehan (C+) just behind.
Graded higher
Lucas GiolitoPadresB-Nolan McLeanMetsB-Connelly EarlyRed SoxB-Graded lower
Emmet SheehanDodgers| Date | OPP | Result | AB | H | R | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|
| Sun, 6/14 | @ CIN | W 5-3 | - | - | - | 0 | - | - | - |
| Tue, 6/9 | @ MIA | L 6-10 | - | - | - | 0 | - | - | - |
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ZAC Gallen is a player in his 7th MLB season listed at SP for the Diamondbacks. FanVerdicts covers every MLB player, team, GM, and transaction — and puts your verdict on all of it. Sign in to cast your Fan Verdict on ZAC Gallen, see where the crowd lands, and argue the call. FanVerdicts also brings its own read — performance, sentiment, and Contract Value Index — as one honest input alongside the crowd's. Where FanVerdicts has weighed in so far: Contract Value Index C, Performance B-, Sentiment D+.
The crowd's Fan Verdict moves in real time as fans vote on this profile. FanVerdicts' own read updates as new data lands — performance recalculates when MLB game stats post, sentiment shifts with media coverage and fan discussion, and the Contract Value Index recomputes when contract terms change. Contract details below show the structure (years, total value, average annual value, guarantees) behind the Contract Value Index read.
For league-wide context, the MLB hub has team rankings, GM report cards, the transactions feed, and live scoreboards. The MLB player rankings page sorts every active player by performance and contract value within their position.
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| 33 |
| 4.83 |
| 13-15 |
| 175 |
| 1.26 |
| 192.0 |
| 0 |
| 2024 | ![]() | 28 | 3.65 | 14-6 | 156 | 1.26 | 148.0 | 0 |
| 2023 | ![]() | 34 | 3.47 | 17-9 | 220 | 1.12 | 210.0 | 0 |
| 2022 | ![]() | 31 | 2.54 | 12-4 | 192 | 0.91 | 184.0 | 0 |
| 2021 | ![]() | 23 | 4.30 | 4-10 | 139 | 1.29 | 121.1 | 0 |
| 2020 | ![]() | 12 | 2.75 | 3-2 | 82 | 1.11 | 72.0 | 0 |
| 2019 | ![]() | 7 | 2.72 | 1-3 | 43 | 1.18 | 36.1 | 0 |
| 2019 | ![]() | 8 | 2.89 | 2-3 | 53 | 1.26 | 43.2 | 0 |
| 2019 | 15 | 2.81 | 3-6 | 96 | 1.23 | 80.0 | 0 |
The public narrative around Zac Gallen sits in a genuinely uncomfortable place right now, and the D+ sentiment grade reflects that discomfort accurately. The defining moment driving coverage has been his Opening Day outing against the Dodgers, where he was chased early by a dominant offense — beat writers zeroed in on mechanical mistakes and execution breakdowns rather than finding any silver lining, and that framing has stuck. What makes this particularly frustrating is the disconnect with his overall on-field grade, which currently sits at a B-, suggesting his body of work in 2026 is more than serviceable even if that marquee early start was ugly. The broader Diamondbacks context isn't helping Gallen's perception either — Arizona sits at .500 and the #9 seed in the NL West, and a flurry of recent roster moves at infield and catcher positions signals a front office in active roster-shuffling mode, which rarely generates the kind of organizational confidence that lifts a starting pitcher's narrative. Gallen does carry real credibility as a 7-year veteran and 2023 All-MLB First Team honoree, but that past recognition feels distant when the most recent media cycle is anchored entirely in questions about his consistency in high-leverage divisional matchups. The one meaningful signal worth watching: the sentiment grade is trending upward from a D, which at minimum suggests the worst of the public backlash may have already crested. For now, though, Gallen is firmly in "prove it" territory with fans and media alike as the regular season stretches forward.
Peers ranked by Performance grade among players at the same position. Tap any name for their full profile.
| Thu, 6/4 | vs LAD | L 0-7 | - | - | - | 0 | - | - | - |